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Blackfin arch: Fix bug - kernel build with config kernel debugging with remote gdb fails 

Add some comment and fix duplicated VEC_EXCPT02

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Sonic Zhang 2008-10-09 14:04:41 +08:00 committed by Bryan Wu
parent 5e9e7687cb
commit 27707d3e43
1 changed files with 9 additions and 12 deletions
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21
arch/blackfin/kernel/traps.c
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@ -284,15 +284,6 @@ asmlinkage void trap_c(struct pt_regs *fp)
return;
else
break;
#ifdef CONFIG_KGDB
case VEC_EXCPT02 : /* gdb connection */
info.si_code = TRAP_ILLTRAP;
sig = SIGTRAP;
CHK_DEBUGGER_TRAP();
return;
#else
/* 0x02 - User Defined, Caught by default */
#endif
/* 0x03 - User Defined, userspace stack overflow */
case VEC_EXCPT03:
info.si_code = SEGV_STACKFLOW;
@ -300,6 +291,14 @@ asmlinkage void trap_c(struct pt_regs *fp)
printk(KERN_NOTICE EXC_0x03(KERN_NOTICE));
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x02 - KGDB initial connection and break signal trap */
case VEC_EXCPT02:
#ifdef CONFIG_KGDB
info.si_code = TRAP_ILLTRAP;
sig = SIGTRAP;
CHK_DEBUGGER_TRAP();
return;
#endif
/* 0x04 - User Defined */
/* 0x05 - User Defined */
/* 0x06 - User Defined */
@ -312,11 +311,9 @@ asmlinkage void trap_c(struct pt_regs *fp)
/* 0x0D - User Defined */
/* 0x0E - User Defined */
/* 0x0F - User Defined */
/*
* If we got here, it is most likely that someone was trying to use a
/* If we got here, it is most likely that someone was trying to use a
* custom exception handler, and it is not actually installed properly
*/
case VEC_EXCPT02:
case VEC_EXCPT04 ... VEC_EXCPT15:
info.si_code = ILL_ILLPARAOP;
sig = SIGILL;